Feature/pdfgenerator

.gitignore

@@ -1 +1,50 @@
 *.dll
+
+# Build results
+[Dd]ebug/
+[Rr]elease/
+x64/
+x86/
+[Bb]in/
+[Oo]bj/
+*.log    
+
+# Visual Studio
+.vs/
+*.user
+*.suo
+*.userosscache
+*.sln.docstates
+
+# Build artifacts that cause conflicts
+**/bin/**
+**/obj/**
+**/*.dll
+**/*.pdb
+**/*.cache
+**/*.exe
+**/Debug/**
+**/Release/**
+
+# Test files and temporary files
+*.pdf
+add_test_data.sql
+test_*.sql
+test_service_history.pdf
+
+# Frontend updates (should be in separate repo)
+frontend-updates/
+
+# NuGet
+packages/
+*.nupkg
+
+# Database files
+*.mdf
+*.ldf
+*.ndf
+
+# User-specific files
+*.cache
+*.pdb
+*.exe

PDF_Generation_Guide.md

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+# Vehicle Service History PDF Generation API Guide
+
+## Overview
+This API provides endpoints to generate PDF reports of vehicle service history, clearly distinguishing between verified and unverified services.
+
+## Features
+- **Verified Services**: Services performed at registered service centers with official records
+- **Unverified Services**: Self-reported services or services from non-registered centers
+- **Visual Distinction**: Different styling and status indicators for verified vs unverified services
+- **Comprehensive Reports**: Full service history with vehicle information and service summary
+- **Summary Reports**: Condensed version with key statistics only
+
+## API Endpoints
+
+### 1. Generate Full Service History PDF
+**Endpoint**: `GET /api/Pdf/vehicle-service-history/{vehicleId}`
+**Description**: Generates a complete PDF report with vehicle info, summary, and detailed service history.
+
+**Example Request**:
+```
+GET /api/Pdf/vehicle-service-history/1
+```
+
+**Response**: PDF file download with filename format: `ServiceHistory_ABC-1234_20250713.pdf`
+
+### 2. Generate Service Summary PDF
+**Endpoint**: `GET /api/Pdf/vehicle-service-summary/{vehicleId}`
+**Description**: Generates a summary PDF with vehicle info and service statistics only.
+
+**Example Request**:
+```
+GET /api/Pdf/vehicle-service-summary/1
+```
+
+**Response**: PDF file download with filename format: `ServiceSummary_ABC-1234_20250713.pdf`
+
+### 3. Preview Service History PDF
+**Endpoint**: `GET /api/Pdf/vehicle-service-history/{vehicleId}/preview`
+**Description**: Returns PDF for inline preview in browser instead of download.
+
+**Example Request**:
+```
+GET /api/Pdf/vehicle-service-history/1/preview
+```
+
+**Response**: PDF file for inline display in browser
+
+## Test Endpoints (Mock Data)
+
+### 1. Test with Mixed Services
+**Endpoint**: `GET /api/TestPdf/test-vehicle-service-history`
+**Description**: Test PDF with both verified and unverified services
+
+### 2. Test with Empty History
+**Endpoint**: `GET /api/TestPdf/test-empty-service-history`
+**Description**: Test PDF with no service history
+
+### 3. Test with Verified Only
+**Endpoint**: `GET /api/TestPdf/test-verified-only`
+**Description**: Test PDF with only verified services
+
+### 4. Test with Unverified Only
+**Endpoint**: `GET /api/TestPdf/test-unverified-only`
+**Description**: Test PDF with only unverified services
+
+## PDF Content Structure
+
+### 1. Header Section
+- Company name: "Vehicle Passport System"
+- Document title
+- Generation date and time
+
+### 2. Vehicle Information Section
+- Registration number
+- Owner information
+- Brand, model, year
+- Fuel type
+- Chassis number
+- Current mileage
+
+### 3. Service History Summary Section
+- Total number of services
+- Number of verified services (highlighted in green)
+- Number of unverified services (highlighted in red)
+- Total cost of all services
+- Average cost per service
+- Date of last service
+
+### 4. Detailed Service History Section
+- Table with all services sorted by date (newest first)
+- Columns: Date, Service Type, Description, Service Provider, Cost, Status
+- **Verified services** display:
+  - Service center name from registered centers
+  - Technician name who performed the service
+  - "VERIFIED" status in green
+  - Normal text styling
+- **Unverified services** display:
+  - External service center name (if provided) or "Self-Reported"
+  - No technician information
+  - "UNVERIFIED" status in orange
+  - Slightly grayed out text
+  - Light gray background
+
+### 5. Legend Section
+- Explanation of verified vs unverified services
+- Clear distinction between the two types
+
+### 6. Footer Section
+- Generation timestamp
+- System identification
+- Disclaimer about unverified services
+
+## Visual Indicators
+
+### Verified Services
+- ✅ Green "VERIFIED" status badge
+- Normal black text
+- White background
+- Service center and technician information included
+
+### Unverified Services
+- ⚠️ Orange "UNVERIFIED" status badge
+- Grayed out text
+- Light gray background
+- External service center name or "Self-Reported"
+
+## Error Handling
+- **404**: Vehicle not found
+- **500**: Internal server error with detailed error message
+
+## Example cURL Commands
+
+### Download Full Service History
+```bash
+curl -X GET "http://localhost:5039/api/Pdf/vehicle-service-history/1" \
+  -H "accept: application/pdf" \
+  --output "service_history.pdf"
+```
+
+### Download Service Summary
+```bash
+curl -X GET "http://localhost:5039/api/Pdf/vehicle-service-summary/1" \
+  -H "accept: application/pdf" \
+  --output "service_summary.pdf"
+```
+
+### Test with Mock Data
+```bash
+curl -X GET "http://localhost:5039/api/TestPdf/test-vehicle-service-history" \
+  -H "accept: application/pdf" \
+  --output "test_service_history.pdf"
+```
+
+## Integration Notes
+
+### Frontend Integration
+1. **Download Button**: Direct link to PDF endpoint
+2. **Preview**: Use iframe or embed with preview endpoint
+3. **Loading States**: Show loading indicator during PDF generation
+4. **Error Handling**: Display user-friendly error messages
+
+### Mobile App Integration
+1. **Download**: Use file download API
+2. **Preview**: Open in system PDF viewer
+3. **Sharing**: Use platform-specific sharing APIs
+
+### Security Considerations
+- Implement proper authentication for production use
+- Validate vehicle ownership before generating PDFs
+- Add rate limiting to prevent abuse
+- Consider adding watermarks for official documents
+
+## Database Requirements
+The PDF generation relies on the following database relationships:
+- `Vehicle` → `Customer` (owner information)
+- `VehicleServiceHistory` → `Vehicle` (service records)
+- `VehicleServiceHistory` → `ServiceCenter` (for verified services)
+- `VehicleServiceHistory` → `User` (technician information)
+
+## Performance Considerations
+- PDF generation is CPU-intensive; consider async processing for large reports
+- Implement caching for frequently requested reports
+- Use pagination for very large service histories
+- Consider background processing for bulk PDF generation